| Phenotype details |
see paper; ..., 37w-birth weight 3.4 kg (60th), length 47 cm (15th), OFC 35 cm (75th); 2y-weight 10.1 kg (17th), height 74.5 cm (<1st), OFC 44.8 cm (1st); facial dysmorphisms; EEG 1m-normal, 4y-epileptiform discharges (generalized polyspike-and-wave); EEG background slowing, 4y-rhythmic delta slowing; 15m-infantile spasms, myoclonic seizures; no photosensitive seizures, no generalized tonic-clonic seizures; MRI brain cortical atrophy, optic nerve atrophy, cerebral hypomyelination, thin corpus callosum; severe global developmental delay; severe intellectual disability; <1m- first neurodevelopmental symptoms/delay; 7y-not able to communicate with words, not able to walk independently, not able to grasp small objects, not able to use spoon/fork, not able to drink from cup, not able to dress |